Note that the top frame placement has the smallest average link click time, and that the average link click times for the left and right frame placements are nearly equal. However, it is also important to note that the standard deviation of the link click times is quite high, thus making it difficult to make any conclusions based solely on the average link click times.
The Single-Factor ANOVA test was used to reveal whether or not there are differences in the true averages associated with the different treatments (The Four Frame Placements) of the independent variable. In other words, the ANOVA test will assist in determining the relevancy of the test results in proving or disproving the hypothesis of the experiment.
SUMMARY
| Groups | Count | Sum | Average | Variance |
| Left | 24 | 76818.2 | 3200.76 | 945421.66 |
| Right | 24 | 76672.2 | 3194.68 | 639878.56 |
| Top | 24 | 71850 | 2993.75 | 641987.06 |
| Bottom | 24 | 79081.2 | 3295.05 | 1093692.27 |
ANOVA
Source of Variation |
SS | df | MS | F | P-value | F crit |
| Between Groups | 1158048.37 |
3 | 386016.12 | 0.46 | 0.71 | 2.70 |
| Within Groups | 76382529.54 |
92 | 830244.89 |
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| Total | 77540577.91 |
95 | ||||
The ANOVA results from the data collected reveals that the placement of the frames appear to be equivalent with respect to the time to click a link with in the appropriate frame, due to the fact that F=0.46 is not at least 2.70(F-Critical).
Note that the top frame placement has the lowest median link click time, and that the left frame placement has the second lowest median link click time. Also, despite the high standard deviation of the data collected, the median link click time allows for a more accurate portrayal of the test results as opposed to the average link click time.
Note that the top frame placement has the smallest average link click time and the lowest median link click time. Also, note the difference of the left frame placement's average link click time and median link click time.
Notice that two of the subjects point click times deviate significantly from the rest of the point click times. For, this reason we reran an ANOVA test on the remaining 22 subjects. However, there was no statistical difference found between the 4 treatments of the frame placement.
Results of ANOVA test on 22 subjects results
Anova: Single Factor |
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| SUMMARY | ||||||
Groups |
Count | Sum | Average | Variance | ||
| Left | 22 | 67906.20 | 3086.65 | 582753.74 | ||
| Right | 22 | 69326.20 | 3151.19 | 561180.96 | ||
| Top | 22 | 63622.00 | 2891.91 | 571231.22 | ||
| Bottom | 22 | 71609.20 | 3254.96 | 1004080.77 | ||
| ANOVA | ||||||
| Source of Variation | SS | df | MS | F | P-value | F crit |
| Between Groups | 1541231.01 |
3.00 |
513743.67 |
0.76 |
0.52 |
2.71 |
| Within Groups | 57104180.46 |
84.00 |
679811.67 |
|
|
|
| Total | 58645411.47 |
87.00 |
|
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From the surveys filled out by subjects during the experiment, it is revealed that the left frame placement is preferred more than the other three frame placements. However, the results of the experiment revealed that more subjects performed better with the top frame placement than the other frame placements, including the most preferred left frame placement.
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